1. High-performance RTL8822BE, high-speed, stable, no disconnection, and high-speed network2. The network card supports 2.4G/5G, the signal is stable, the compatibility is good, and you can use it with confidence3. Bluetooth 4.0 chip, lower consumption and more stable4. This network card supports IIEEE802.11/B/G network protocol, reach up to 876Mbps5. High-quality circuit module board, mini body, high efficiency to avoid corrosion and abrasion, durable and easy to use.Product name: wireless network cardNetwork card chip: RTL8822BEWorking frequency band: -band 2.4G/5GTransmission rate: 867MInterface type: NGFF/M.2 interfaceProtocol frequency band: IIEEE802.11/B/GSupport WIFI 433M+Bluetooth 4.0Version: for (not compatible with other of machines)for P51S S5 T470 T570 X270for YOGA E470 E470C E475 E570 E570C E575Material:PCBcolour:GreenPackage Contents:1 x wireless network cardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.